Full Stack Software Developer [C# /.Net]

Graitec; Montreal (administrative region); On-site; CAD 110,000 - 140,000; Full time

Job summary

Highspring is seeking a Senior Mobile Developer to join one of our delivery teams. You will design, develop, and evolve mobile applications using React Native and TypeScript, collaborating closely with product, design, and architecture teams in an Agile setting.

You will define technical direction, ensure code quality, and contribute to testing and automation initiatives, while delivering high-performing, scalable solutions and maintaining clear documentation.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or equivalent experience.
• 7+ years of professional software development experience.
• 5+ years of hands-on experience developing mobile applications with React Native and TypeScript.
• Proven ability to work effectively within Agile delivery teams.
• Professional proficiency in French.

Responsibilities

• Define the vision, roadmap, and technical direction for mobile products and solutions.
• Collaborate with stakeholders to translate business needs into technical solutions.
• Design, develop, test, and maintain mobile features using modern development practices.
• Write clean, maintainable code following Clean Code, SOLID, and TDD/BDD principles.
• Promote architectural trade-off discussions and document decisions.
• Collaborate with designers and architects to improve performance, availability, and security.
• Participate in code reviews and knowledge-sharing across the team.
• Develop and maintain automated tests (unit, integration, end-to-end).
• Support QA practices and automation initiatives to ensure quality.
• Work with UX and product teams to deliver strong user experiences.
• Manage priorities across multiple workstreams in a dynamic environment.

Skills

React Native

React

TypeScript

Agile methodologies

French/English bilingual

Problem solving

Education

Bachelor’s degree in Computer Science or Software Engineering

Tools

Redux

Jest

Appium

Selenium

Cypress

Detox

REST/GraphQL APIs

Job description

Job description

About Highspring

Highspring is a next-generation consulting and professional services firm. We deliver modern, agile, and forward-thinking solutions to our clients across North America. We partner with leading organizations in banking, insurance, and technology to help them accelerate innovation and deliver meaningful business outcomes. At Highspring, we empower our people, foster technical excellence, and create opportunities to work on impactful digital transformation initiatives.

The Opportunity

We are seeking a Senior Mobile Developer to join one of our delivery teams and contribute to the design, development, and evolution of modern mobile applications. In this role, you will leverage your expertise in React Native and TypeScript to deliver scalable, maintainable, and high-performing mobile solutions while collaborating closely with product, design, and architecture teams in an Agile environment.

What You’ll Do

• Contribute to defining the vision, roadmap, and technical direction of mobile products and solutions.
• Collaborate with stakeholders to understand business needs and translate requirements into technical solutions.
• Design, develop, test, and maintain high-quality mobile application features using modern development practices.
• Write well-structured, readable, and maintainable code while promoting Clean Code, SOLID, and TDD/BDD principles.
• Evaluate technical options and clearly communicate architectural and implementation trade-offs.
• Partner with designers and architects to improve application performance, availability, security, and scalability.
• Participate actively in code reviews and knowledge-sharing activities across the team.
• Develop and maintain automated unit, integration, functional, and end-to-end tests.
• Contribute to ongoing testing automation initiatives and quality assurance practices.
• Work closely with UX and product design teams to deliver impactful user experiences.
• Collaborate effectively with team members and provide constructive technical feedback.
• Participate in troubleshooting production issues and resolving ongoing incidents.
• Ensure documentation and development practices remain current and accessible.
• Effectively manage priorities and balance multiple workstreams in a dynamic environment.

What You Bring to the Table

• Bachelor’s degree in Computer Science, Software Engineering, or equivalent experience.
• 7+ years of professional software development experience.
• 5+ years of hands-on experience developing mobile applications with React Native and TypeScript.
• Proven ability to work effectively within Agile delivery teams.
• Strong analytical and problem-solving skills.
• Excellent communication and collaboration abilities.
• Ability to manage competing priorities while maintaining a high level of quality.
• Professional proficiency in French.

Core Skills Required

• Strong experience with React Native and React.
• French/English
• Advanced proficiency in TypeScript and modern JavaScript (ES2015+).
• Experience with Redux and React Native UI development.
• Experience integrating RESTful and GraphQL APIs within mobile applications.
• Mobile application development experience across the software delivery lifecycle.
• Knowledge of debugging, profiling, and performance optimization techniques.
• Experience using code quality and linting tools, including ESLint.
• Familiarity with CI/CD practices and tools such as GitHub, Jenkins, App Center, and npm.
• Understanding of Agile methodologies and collaborative development practices.

Our Stack

• Mobile: React Native, React, TypeScript
• State Management: Redux
• API Integration: RESTful APIs, GraphQL
• Testing: Jest, Appium, Selenium, Cypress, Detox
• CI/CD & DevOps: GitHub, Jenkins, App Center, npm
• Cloud & Infrastructure: AWS, Docker, Kubernetes
• Collaboration Tools: Jira, Confluence

Why Join Highspring?

• Work alongside a team of experienced consultants and technology professionals.
• Contribute to innovative projects within highly regulated and rapidly evolving industries.
• Access continuous learning, certification, and professional development opportunities.
• Participate in a collaborative, inclusive, and knowledge-driven culture.
• Help deliver meaningful solutions that create measurable business value.

À propos de Highspring

Highspring est une firme de consultation et de services professionnels de nouvelle génération. Nous offrons à nos clients partout en Amérique du Nord des solutions modernes, agiles et tournées vers l’avenir. Nous collaborons avec des organisations de premier plan dans les secteurs bancaire, de l’assurance et des technologies afin d’accélérer l’innovation et de générer des résultats d’affaires concrets. Chez Highspring, nous valorisons l’excellence technique, le leadership et le développement de nos talents.

L’opportunité

Nous sommes à la recherche d’un(e) Développeur(euse) Mobile Senior pour se joindre à l’une de nos équipes de livraison et contribuer à la conception, au développement et à l’évolution d’applications mobiles modernes. Vous mettrez à profit votre expertise en React Native et TypeScript afin de livrer des solutions performantes, évolutives et maintenables, tout en collaborant étroitement avec les équipes produit, design et architecture dans un environnement Agile.

Ce que vous ferez

• Contribuer à la définition de la vision, de la feuille de route et de l’orientation technique des produits et solutions mobiles.
• Collaborer avec les parties prenantes afin de comprendre les besoins d’affaires et de définir les exigences techniques.
• Concevoir, développer, tester et maintenir des fonctionnalités mobiles de haute qualité.
• Produire un code clair, robuste et maintenable en appliquant les principes Clean Code, SOLID et TDD/BDD.
• Analyser et communiquer les compromis techniques liés aux décisions d’architecture et d’implantation.
• Collaborer avec les designers et architectes pour améliorer la performance, la disponibilité, la sécurité et l’évolutivité des applications.
• Participer activement aux revues de code et aux activités de partage des connaissances.
• Concevoir, exécuter et maintenir des tests unitaires, d’intégration, fonctionnels et End-to-End.
• Contribuer activement à l’automatisation des tests et aux initiatives d’assurance qualité.
• Travailler étroitement avec les équipes UX et produit afin de créer des expériences utilisateurs à forte valeur ajoutée.
• Collaborer efficacement avec les membres de l’équipe et remettre en question les idées de manière constructive.
• Participer à la résolution d’incidents et au soutien des applications en production.
• Maintenir à jour la documentation et les bonnes pratiques de développement.
• Gérer efficacement les priorités dans un contexte dynamique et en constante évolution.

Ce que vous apportez à l’équipe

• Baccalauréat en informatique, en génie logiciel ou expérience équivalente.
• Anglais/Français
• Minimum de 7 ans d’expérience en développement logiciel.
• Minimum de 5 ans d’expérience pratique en développement React Native avec TypeScript.
• Expérience démontrée au sein d’équipes Agile.
• Excellentes aptitudes analytiques et de résolution de problèmes.
• Solides compétences en communication et en collaboration.
• Capacité à gérer plusieurs priorités simultanément tout en maintenant un haut niveau de qualité.
• Maîtrise professionnelle du français.

Compétences clés requises

• Excellente maîtrise de React Native et React.
• Maîtrise avancée de TypeScript et JavaScript moderne (ES2015+).
• Expérience avec Redux et le développement d’interfaces React Native.
• Expérience d’intégration d’API RESTful et GraphQL dans des applications mobiles.
• Expérience complète du cycle de développement d’applications mobiles.
• Connaissance des techniques de débogage, de profilage et d’optimisation des performances.
• Expérience avec les outils de qualité du code et de linting, notamment ESLint.
• Familiarité avec les pipelines CI/CD et les outils tels que GitHub, Jenkins, App Center et npm.
• Bonne compréhension des méthodologies Agile et des pratiques de développement collaboratif.

Notre environnement technologique

• Mobile : React Native, React, TypeScript
• Gestion d’état : Redux
• Intégration API : REST, GraphQL
• Tests : Jest, Appium, Selenium, Cypress, Detox
• CI/CD et DevOps : GitHub, Jenkins, App Center, npm
• Infrastructure infonuagique : AWS, Docker, Kubernetes
• Outils de collaboration : Jira, Confluence

Pourquoi joindre Highspring?

• Faire partie d’une équipe composée de professionnels et de consultants expérimentés.
• Contribuer à des projets innovants dans des industries hautement réglementées et en transformation.
• Profiter d’occasions continues d’apprentissage, de certification et de perfectionnement professionnel.
• Évoluer dans une culture collaborative, inclusive et axée sur le partage des connaissances.
• Participer à la réalisation de solutions ayant un impact concret pour les organisations clientes.

By submitting to this position, you are agreeing to be included in our talent pool for future hiring for similarly qualified positions.

EEO Notice

Vaco by Highspring is an Equal Opportunity Employer and does not discriminate against any employee or applicant for employment because of race (including but not limited to traits historically associated with race such as hair texture and hair style), color, sex (includes pregnancy or related conditions), religion or creed, national origin, citizenship, age, disability, status as a veteran, union membership, ethnicity, gender, gender identity, gender expression, sexual orientation, marital status, political affiliation, or any other protected characteristics as required by federal, state or local law.

Vaco by Highspring and its parents, affiliates, and subsidiaries are committed to the full inclusion of all qualified individuals. As part of this commitment, Vaco by Highspring and its parents, affiliates, and subsidiaries will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact [e-mail] .

Vaco by Highspring also wants all applicants to know their rights that workplace discrimination is illegal .

Representation Notice

By submitting to this position, you agree that you will be giving Vaco by Highspring the exclusive right to present your as a candidate for the foregoing employment opportunity. You further agree to maintain as confidential, to the fullest extent permitted by law, any information you learn from Vaco by Highspring about the position and you will limit disclosure of information about the position only to the extent necessary to perform any obligations in furtherance of your application. In exchange, Vaco by Highspring agrees to exercise reasonable efforts to represent you through all solicitation, job screening and resume dispersal.

For residents of Ontario, Canada: Based on Highspring’s discussions with its Client, Highspring’s understanding is that this position for employment is a current vacancy (either through Highspring as a contractor or with the client directly).

Privacy Notice

Vaco by Highspring and its parents, affiliates, and subsidiaries (“we,” “our,” or “Vaco by Highspring”) respects your privacy and are committed to providing transparent notice of our policies.

• California residents may access Vaco by Highspring HR Notice at Collection for California Applicants and Employees here .
• Virginia residents may access our state specific policies here .
• Residents of all other states may access our policies here .
• Canadian residents may access our policies in English here and in French here .
• Residents of countries governed by GDPR may access our policies here .

Additionally, submissions to this position are subject to the use of AI to perform preliminary candidate screenings, focused on ensuring minimum job requirements noted in the position are satisfied. More details about Vaco by Highspring’s use of AI can be found here ( https://www.highspring.com/ai-use-notices/ ). Further assessment of candidates beyond this initial phase will be conducted by recruiters and hiring managers. Vaco by Highspring does not know and cannot opine on if its client’s use of AI products in hiring.

Pay Transparency Notice

Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to:

• the individual’s skill sets, experience and training;
• licensure and certification requirements;
• office location and other geographic considerations;
• other business and organizational needs.

With that said, as required by local law, Vaco by Highspring believes that the following salary range referenced above reasonably estimates the base compensation for an individual hired into this position in geographies that require salary range disclosure. The individual may also be eligible for discretionary bonuses.